Powder sprayer



Aug. 14, 1923.

M. ANDERSON POWDER SPRAYER 2 Sheets-Sheet 1 Filed March 13.

aktozucq- M. ANDERSON POWDER 'SPRAYER Filed March 13, 1922 2 Sheets-Sheet 3 DEFSO/V,

W QNRH mam Patented Aug. 14, 1923.

MONROE ANDERSON, OF PEMBROKE, KENTUCKY.

rownnn SPRAYER.

Application filed March 13, 1922; 'Serial No. 543.,36.

To all whom it may concern:

Be it known that I, MoNRonANDEnsoN, a citizenof the United States. residing at Pembroke. in the'county of Christian and State of Kentucky, haveinvented certain new and useful Improvements in Powder Sprayers, of which the following is a specification, reference being had therein tothe accompanying drawing, The present invention relates to powder sprayers, and aims to provide a novel and improved sprayer. for distributing or blowing powder, and adapted especially for spraying tobacco; fruits, vegetables, and other vegetation with insect powder, although'useful for other purposes, such as for spraying fire-extinguishing powder, powdered sand, and the like" for which the device is suited.

Another object is the provision of a powder sprayer comprising a'novel'construction and combination of an air blowerandpowder magazine.

A further objectis thevprovision .of novel means for feeding the powder to the discharging stream of air and regulating the 'feed thereof.

A still further object is the provision of powder feeding and controlling means operated automatically by the actuating means of the blower,

'TVith the foregoing and-other objects in view, which will be understood as the description proceeds, the invention 'resides in the construction-and arrangement of parts, as hereinafter described and claimcdfit be ing understood that changes can be made within the scope of what is claimed, without departing from the spirit of theinventon.

The invention is illustrated in the accompanying drawings, wherein-- Figure 1 is a side elevation of the improved sprayer.- i Fig. 2 is an enlarged detail view of the actuating means for the powder feeder, aortions being shown in section.

Fig. 3 is a longitudinal section on the line 3 3 ofFig. 4.

Fig. 4 is ,a plan View of the device, por tions being broken away.

' Figs "5' and Gare section's *on'th tive lines v.5-5a'nd 66 of'Fig, 1.

The sprayer uses an air blower or fan 10* =tive1y flat, and from and'the rotor within'th'e casing is 1 opening 13 r and able spray head or nozzle. ment of the invention as shown an extension the powder is also mounted e *respem oft'he chamber andtop of said pipe having havingthe circular casing ll-which is relawhich a--clischarge pipe 12 extends "tangentially. One side of the casing 11 hasa central air inlet opening 13, composed of the radial blades 14 which in being rotateel-(counter clockwise as seen in F 3) will draw air into the casing through the inlet discharge same forcefully through the pipe The rotor is carried by astub shaft 15 journaled through the side of the casing opposite to the opening 13 and *also journaled ina gear case 16 secured to the corresponding side of the casing 11. 1011 l7'1S SC UI'8Cl on the shaft 15 within the A pincase ldand meshes with a gearwheel 18 of larger diameter-also disposed in said. case and "secured on a shaft 19journalcd in the wall of the case 16 and the corresponding wall or side of the blower casing 11. The shaft 19 has a hand crank 20. as shown.

which when rotated will rotate the rotor of the blower at a high speed for creating a strong currentof air through the discharge pipe. The gears are housed withinthe gear case '16 to be protected from foreign matter.

The air can be discharged through a suit- In the embodi 21 is telescoped on the discharge end of the pipe 12 and is provided at its extremity with a fan-sl-raped nozzle 22 for spraying in a. fan-shaped stream, to spreadthe powder over a considerable area. The nozzle 22 has deflectors 23 therein diwergingto the mouth of the nozzle, to assist in-spreading the powder and air which is discharged through said nozzle. The nozzle is preferably arranged at an angle with thepipe 21 and can be turned to discharge the air and powder at the desired angle.

The powder magazineor supplying means includes a receptacle or chamber 245, which is alsopreferably of circular shape and rela tively flat, like the blower casing 11. As

shown. the discharge pipe 12 extends hori- "zontally from the blower casing under the chamber 24-, and said chamber is secured, by soldering or otherwlse, to the casing '11, and on the'pipelQ, the bottom an 'opcning' 25 for the flow of the powder screw cap 28, for the convenient filling of ,ed, and said valve and brush 33 intermittently.

the chamber with powder.

In ord r to regulate the flow of powder from the chamber through the opening 25, a slide valve 29 is slidable through one wall of the spout 26 under the bottom of the chamber and can be projectedmore or less into the opening 25 to regulate the flow of powder. The valve 29 has a threaded stenillt) projecting from its outer end and is threaded on said stem fer having a discharge pipe and actuating an usting nut and 1s swlvelled in a prop 31 connecting the pipe 12 and chamber 24-. Thus, by turning" the nut 32, the valve is conveniently ad ust- 7 1S curved and preferably resilient to press upwardly against the bottom of the chamber or receptacle 2st. 7

p The powder feeder includes a rotary circular brush 33 within the chamber 1 se' cured on a shaft 3a through the chamber above the opening 25,

so that the bristles at the bottom of the hrush press down on the bottom of the chamber 24- and valve 29, as seen in Fig; The brush is preferably provided at one side with an agitator 3:) to loosen the pow der and cause it to flow to the bottom of the chamber under the brush. The brush being rotated'will feed the powder to the opening 25, lumps of powder, so that the powder is fed to the stream of air slowly and evenly.

The powder feedm: or brush is operated from the operating means of the blower. Thus, a ratchet wheel 36 is secured on the protruding terminal of the shaft 38 and an oscillatory arm 37 is mounted loosely on saidshaft and has a mud 38 to en 'aee sair ratchet wvheel, whereby the oscillation of the arm 37 Wlll. rotate the ratchet wheel 36 A reciprocating bar 39 has a piece 40 secured to one end by means of screws ll or otherwise, and has arm.

secured to and located between the casing ll a slot 42 receiving the arm 37, whereby-the reciprocation of sa1d bar will oscillate said The bar 39 is slidablein a guide 413 and the chamber 24: at one side thereof, and

said bar is further slidable in a. guide a l. secured to the gear case 16.

A coil spring ie surrounds said her and is confined between a shoulder of the bar and the guide 43 to normally retract said bar to the position as seen in Figs. 1 and 4. A double cam 46 is secured to the shaft 19. and works within a slot 927 in the bar 09 to bear against a cross portion i8 of said bar and shove the bar forwardly to the position as seen in Fig. 2. Thus, when the shaft 19 1S rotated for operjournaled transversely a reciprocatory member, and the brush will also break up any ating the blower, thecam i6 will intermittently force the bar 39 forwardly and then release it, the spring returning said bar with a sharp or quick movement when the cam passes the portion 48 and releases same,

so as to jar. or vibrate the device, to loosen the powder, as will be apparent. The bar 39 is tins reciprocated by the cam 46 which revolves with the shaft 19, and the arm 37 is thus oscillated for turn ng the feeder brush 33 intermittently. The powder is thus fed automatically to the air in proportion to the speed of the blower and air current. 7 V

laving thus described the invention, what isclaimed as new 1s:- r V 1.. A powder sprayer comprlsing a blow- 2. A; powder-sprayer comprising ablower having a discharge pipe and actuating means, a powder chamber having an outlet to discharge into said pipe, a rotary powder feeder in said chamber working over said outlet,

a ratchet connection between said member and feeder for turning the feeder step bystep when said member is recip'rocated, means movable with said actuating means for moving said member in one, direction and releasing sameintermittently, and spring means for moving said member in the opposite direction with a sharp movement when said member is released.

3. A powder sprayer comprising a blower having a discharge pipe and actuating means including a shaft, apowder chamber having an outlet to discharge into said pipe, a rotary powder feeder insai'd chamber working over said outlet, a" ratchet wheel rotatable with said feeder, an oscillatory member 7 member. 7 r a a. A powdersprayer comprising a blower casing havinga discharge pipe,- a gear case secured to sa1d casing, a rotor lnlthe casing having a shaft journaled in saidcase, a drive shaft journaled in said case, gears connecting said shafts in said case, a powder chamber mounted on said pipe and having an outlet to discharge into the pipe, a rotary .tuating ineans for moving sa1d member in brush in said chamber Working over said outlet, a transverse shaft ournaled 1n the chamber to Whlch sald brush 1s secured, a

ratchet Wheel secured to named shaft and having a said ratchet Wheel a cam the last named shaft, an oscillatory arm mounted on the last pawl to engage drive shaft, and a reciprocatory member 0perated by said cam and connected to sald arm.

In testimony rwhereof I hereunto affix my signature.

MONROE ANDERSON. 

